From Kawasaki's press material:
KEY POINTS - Light and Compact, 998cc, 4-Cylinder DOCH Liquid Cooled Engine
- Lightweight Forge Pistons
- Spark Plug-Mounted Ignition Coils
- Digital Timing Advance
- EFI with 43mm Keihin Throttle Bodies
- Central Ram Air Induction System
- Titanium Exhaust with Butterfly Valve
- Back-Torque Limiting Clutch
- Lightweight Aluminum Twin Spar Backbone Frame
- Fully Adjustable 43mm Inverted Cartridge Front Fork
- Fully-Adjustable Bottom-Link Uni-Trak Rear Suspension
- Gull-Wing swingarm
- Dual 300mm Floating Front Disc Brakes with Radial-Mount Calipers
- Petal design Front Disc Brakes
- LCD Display Instrument Panel with Stopwatch, Lap Counter and Shift Indicator Lamp
- Halogen Multi-Reflector Dual Headlights and LED Tail Light
2004 Ninja ZX-10R FEATURES AND ADVANTAGES - 998cc 4-cylinder, DOHC engine is a very compact, narrow and lightweight design
- One-piece upper crankcase/cylinder casting increases rigidity
- Passages between the chrome composite plated aluminum cylinders reduce pumping loss and increase power
- Flat-topped, forged pistons provide efficient combustion with low reciprocating weight and high heat resistance
- High-speed generator located behind the cylinder to reduce engine width and lower crankshaft mounting position
- Oil channels in the case mounting surfaces eliminate separate oil lines
- High-efficiency liquid-cooled aluminum oil cooler is compact and lightweight
- 4-Valve Cylinder Head with compact valve train reduces cylinder head height
- Single valve springs with oval cross sections reduce weight and is more compact
- Aluminum valve retainers reduce weight and allow higher rpm
- Flow-analysis designed intake ports for efficient cylinder filling and more power
- Billet camshafts are more than a half-pound lighter than cast cams
- Single, centrally located Ram Air Induction feeds the compact, highly efficient air box
- Electronic Fuel Injection using 43mm Keihin throttle bodies
- Sub throttle valves are controlled by the ECU to provide precise response
- Dual atomizing injectors in each intake for smooth throttle response
- TCBI Ignition with Digital Advance
- High-speed processor provides precise engine management
- Spark plug-mounted ignition coils are compact and help reduce weight
- Titanium exhaust system with Butterfly Valve
- Butterfly Valve in the exhaust collector improves power, reduces noise
- Oval muffler has titanium components wrapped in lightweight aluminumcover
- 6-Speed Transmission features close ratios, increasing circuit performance
- Tunable back-torque limiting clutch helps prevent wheel hop during hard braking
- Aluminum Twin Spar backbone frame composite of pressed and cast components for light weight, high stability and responsive handling, more compact than the ZX-6R frame
- Uni-Trak Rear Suspension
- Computer-designed gull-wing aluminum swingarm is very light and rigid
- Fully adjustable Kayaba shock with circuit settings
- Top-out spring helps provide precise control under hard braking
- Threaded upper shock mount for ride height adjustment; 1mm shims available
- Kayaba 43mm Inverted front forks are highly rigid for superior handling on the street or circuit
- Front forks are fully adjustable with circuit settings
- Top-out springs help provide precise control under hard acceleration
- Aluminum wheels are a new 6-spoke design
- Radial mounted front dis brakes
- Radial mounted 4-piston caliper for increased rigidity and improved brake feel over a wide range of operation
- Individual brake pads for each piston prevent pad deformation due to heat
- Petal Design brake discs improve cooling and warp resistance
- First "wavy" type discs to come standard on a supersport machine
- Aerodynamic Bodywork has less frontal area than the ZX-6R
- Bodywork designed for maximum aerodynamic efficiency when used on the track
- Fuel tank shape allows a tighter tuck behind the windscreen
- Advanced Electronic Instrumentation
- All-LCD display features digital step motor speedometer and temperature gauge inside the bar display tachometer
- Multi-function odometer, trip meter, clock and lap timer/stopwatch
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